摘要:

&NA;Over the past 18 months we have encountered 11 cases of symptomatic lumbar synovial cysts. This experience occurred during a period during which some 1,800 lumbar computed tomographic scans were done. The apparent increased incidence of these lesions is most likely due to the increased diagnostic ability made possible by the advent of high‐resolution computed tomography and magnetic resonance imaging. This is a report and discussion of our 11 cases with a review of the literature. There is nothing distinctive in the physical findings or in the histories of our patients, but we have found, as have others, that high‐resolution computed tomographic scanning and magnetic resonance imaging significantly enhance the diagnosis of such lesions. (Neurosurgery24:112‐115, 1989)

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

摘要:

&NA;Two case reports of compression of the cervical spinal cord associated with silicone‐coated Dacron dural grafts are presented. In both cases, the cervical spinal cord was distorted and compressed by an intense tissue reaction that encapsulated the synthetic graft. At least two factors are thought to play a role in precipitating this reaction: (1) the introduction of surface contaminants into the wound, and (2) repeated motion at the graft site. (Neurosurgery24:115‐118,1989)

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

摘要:

&NA;The case of a 40‐year‐old man with syringobulbo‐myelia secondary to an unresectable spinal extramedullary tumor is described. Fifteen years previously, the patient had undergone a laminectomy of T8 through T12 for a “benign” spinal cord tumor at another hospital and had become paraplegic; the tumor (neurinoma) had been neglected for 12 years. Magnetic resonance imaging demonstrated a large thoracolumbar spinal tumor with syringobulbo‐myelia. Polysomnography showed central‐, peripheral‐, and mixed‐type sleep apneas. After the failure of an attempted syringoperitoneal shunt, cordectomy at the level of T6 was performed with a good result. The mechanisms of the formation of syringomyelia and sleep apnea secondary to a caudal spinal extramedullary tumor are discussed. (Neurosurgery24:118‐124, 1989)

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

摘要:

&NA;Granulocytic sarcoma (GS) usually occurs during the course of, or as a presenting sign of myelogenous leukemia. Rarely it is found before peripheral blood or bone marrow evidence of leukemia is present. We describe a man who presented with low back pain and lower extremity weakness. He had spinal cord compression due to GS without evidence of leukemia. Only four such instances have been previously reported. Such aleukemic presentations of GS are frequently misdiagnosed. The chloroacetate esterase stain and electron microscopy are useful in demonstrating the myeloid origin of GS cells. GS lesions are probably best treated by localized radiation therapy and systemic chemotherapy. (Neurosurgery24:125‐128, 1989)

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

摘要:

&NA;Overwhelming and confusing data regarding the natural history of arteriovenous malformations can confound physicians attempting to advise patients whether surgery of unruptured arteriovenous malformations is indicated. Decision analysis is a new mathematical tool that allows physicians to compare options in such patients. With the use of a simple office computer, a software program was devised to compare surgical versus conservative options in a hypothetical 25‐year‐old man. The computer model weights the important considerations of patient age, mortality and morbidity rates of the physician performing the surgery, rebleeding from the arteriovenous malformation, and patient desires, using the Markov process. When mortality and morbidity rates are reasonable, the mathematical process supports surgical intervention in the hypothetical patient. Patient guidelines for older patients and future plans for the model using grading systems are discussed. (Neurosurgery24:129‐135, 1989)

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID

ISSN:0148-396X    

出版商:OVID    

年代:1989

数据来源: OVID